content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * ------------------
   * RendererState.java
   * ------------------
   * (C) Copyright 2003-2008, by Object Refinery Limited.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes:
   * --------
   * 07-Oct-2003 : Version 1 (DG);
   * 09-Jun-2005 : Added a convenience method to access the entity
   *               collection (DG);
   *
   */
  
  package org.jfree.chart.renderer;
  
  import org.jfree.chart.ChartRenderingInfo;
  import org.jfree.chart.entity.EntityCollection;
  import org.jfree.chart.plot.PlotRenderingInfo;
  
  /**
   * Represents the current state of a renderer.
   */
  public class RendererState {
  
      /** The plot rendering info. */
      private PlotRenderingInfo info;
  
      /**
       * Creates a new state object.
       *
       * @param info  the plot rendering info.
       */
      public RendererState(PlotRenderingInfo info) {
          this.info = info;
      }
  
      /**
       * Returns the plot rendering info.
       *
       * @return The info.
       */
      public PlotRenderingInfo getInfo() {
          return this.info;
      }
  
      /**
       * A convenience method that returns a reference to the entity
       * collection (may be <code>null</code>) being used to record
       * chart entities.
       *
       * @return The entity collection (possibly <code>null</code>).
       */
      public EntityCollection getEntityCollection() {
          EntityCollection result = null;
          if (this.info != null) {
              ChartRenderingInfo owner = this.info.getOwner();
              if (owner != null) {
                  result = owner.getEntityCollection();
              }
          }
          return result;
      }
  
  }
  